The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 03, 2015
Filed:
Sep. 14, 2012
Roy D. Cideciyan, Rueschlikon, CH;
Evangelos S. Eleftheriou, Rueschilikon, CH;
Robert Haas, Rueschlikon, CH;
Xiao-yu HU, Rueschlikon, CH;
Ilias Iliadis, Rueschlikon, CH;
Roy D. Cideciyan, Rueschlikon, CH;
Evangelos S. Eleftheriou, Rueschilikon, CH;
Robert Haas, Rueschlikon, CH;
Xiao-Yu Hu, Rueschlikon, CH;
Ilias Iliadis, Rueschlikon, CH;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A mechanism is provided for controlling a solid state storage device in which the solid state storage comprises erasable blocks each comprising a plurality of data write locations. Input data is stored in successive groups of data write locations, each group comprising write locations in a set of erasable blocks in each of a plurality of logical subdivisions of the solid state storage. The input data is error correction encoded such that each group contains an error correction code for the input data in that group. Metadata, indicating the location of input data in the solid state storage, is maintained in memory. An indication of validity of data stored in each data write location is also maintained. Prior to erasing a block, valid input data is recovered from the group containing write locations in that block. The recovered data is then re-stored as new input data.